CN211868512U

CN211868512U - Injection mold of casing

Info

Publication number: CN211868512U
Application number: CN202020113424.XU
Authority: CN
Inventors: 葛扬
Original assignee: Ningbo Hongyi Plastic Technology Co ltd
Current assignee: Ningbo Hongyi Plastic Technology Co ltd
Priority date: 2020-01-17
Filing date: 2020-01-17
Publication date: 2020-11-06
Anticipated expiration: 2030-01-17

Abstract

The utility model discloses an injection mold of casing, from the top down includes the upper die base in proper order, the cope match-plate pattern, the lower bolster, the die holder subassembly, be equipped with the die cavity in the cope match-plate pattern, be equipped with the core in the lower bolster, core and die cavity constitute a die cavity that can the shaping injection molding jointly, the cope match-plate pattern upper end is equipped with the first slider that can control the removal, first slider is equipped with the first guide part of slope, and the first guide way of "T" shape parallel with first guide part, be equipped with the slidable square in the first guide way, the square is equipped with the square hole, first shaft hole, be equipped with in the die cavity and remove and run through the core bar of supreme template in the die cavity, the core bar upper end is equipped with square connecting portion, connecting portion are equipped with the second shaft hole, be equipped with the round pin axle. The utility model discloses it is rational in infrastructure, can realize the shaping and the drawing of patterns of injection molding.

Description

Injection mold of casing

Technical Field

The utility model belongs to the technical field of injection mold and specifically relates to an injection mold of casing is related to.

Background

The injection mold is divided into a thermosetting plastic mold and a thermoplastic plastic mold according to the molding characteristics; according to the forming process, the method is divided into a transfer mold, a blow mold, a cast mold, a hot forming mold, a hot pressing mold (compression mold), an injection mold and the like, wherein the hot pressing mold can be divided into a flash type, a semi-flash type and a non-flash type by a flash mode, and the injection mold can be divided into a cold runner mold and a hot runner mold according to a pouring system; the loading and unloading mode can be divided into a movable mode and a fixed mode.

The injection mold structure mainly comprises the following components according to functions: the device comprises a pouring system, a temperature adjusting system, a formed part system, an exhaust system, a guide system, an ejection system and the like. Where the runner system and the molded part are the parts in direct contact with the plastic and vary with the plastic and the article, the most complex and variable part in the mold that requires the highest finish and precision of the finish. The injection mold is generally composed of a mold frame, a mold core, auxiliary parts, an auxiliary system, an auxiliary device, a dead angle processing mechanism and the like according to the structure.

Fig. 1 shows an injection molded part 100, where the injection molded part 100 has a structure of a right cylinder hole 101, an oblique cylinder hole 102, and a side hole 104, where a copper nut 103 needs to be embedded in the oblique cylinder hole 102 for injection molding, and because the oblique cylinder hole 102, the side hole 104 and an upper end surface of the injection molded part 100 are not perpendicular, an injection mold cannot directly adopt a structure of demolding from top to bottom, and an engineer needs to design a structurally reasonable injection mold to complete molding of the injection molded part 100.

Disclosure of Invention

The utility model aims to solve the technical problem that an injection mold of casing is provided, this mould adopts reasonable structure to come the shaping injection molding.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: an injection mold of a shell comprises an upper mold base, an upper mold plate, a lower mold plate and a lower mold base assembly from top to bottom in sequence, wherein a mold cavity and a plurality of molding needles are arranged in the upper mold plate, a mold core is arranged in the lower mold plate, the mold core and the mold cavity jointly form a mold cavity capable of molding an injection molding part, the upper mold plate is provided with a first slide block capable of moving left and right, the first slide block is provided with an inclined first guide part and a T-shaped first guide groove parallel to the first guide part, a slidable square block is arranged in the first guide groove, the square block is provided with a square hole and a first shaft hole, a core pulling rod capable of moving in the mold cavity and penetrating through the upper mold plate is arranged in the mold cavity, a square connecting part is arranged at the upper end of the core pulling rod, a second shaft hole is arranged in the connecting part, and a pin shaft penetrating through the first shaft hole is arranged in the, the square hole sleeve is arranged outside the connecting part, the core pulling rod is perpendicular to the first guide groove, a pillar and a sharp corner are arranged at the lower end of the core pulling rod, the lower template is provided with a second sliding block capable of moving left and right, the second sliding block is provided with an inclined second guide part and a T-shaped second guide groove parallel to the second guide part, the core is provided with a pressing plate and an inclined sliding block capable of sliding in the core and extending to the cavity, the inclined sliding block is provided with a sliding part, a bayonet and a plurality of forming columns, the sliding part, the bayonet and the second guide groove are movably connected, the sliding direction of the inclined sliding block is perpendicular to the second guide groove, and the pressing plate is attached to the upper ends of the second guide part and the inclined sliding block.

The principle of the utility model is that: firstly, placing a copper nut at a strut of a core pulling rod, and folding an upper template and a lower template for injection molding; opening the mold after injection molding, and gradually separating the plurality of molding needles from the straight column holes of the injection molding piece; the first sliding block moves rightwards, the square block slides in the first guide groove, and the core pulling rod moves towards the upper right corner so as to be separated from the inclined column hole of the copper nut and the injection molding piece; the second slider moves leftwards, and the second guide groove drives the inclined slider to move leftwards and leftwards to separate from the side hole of the injection molding part, so that the injection molding part is molded and demolded.

As the utility model discloses further improve, cope match-plate pattern upper end right side be equipped with the support, the support install and to drive the hydro-cylinder that removes about the first slider.

As the utility model discloses further improve, the cope match-plate pattern be equipped with first spout, first slider and first spout sliding connection, the both sides of first spout be equipped with second spout, fixed slot, first slider both sides be equipped with and keep off the shoulder, fender shoulder and second spout sliding connection, the fixed slot be equipped with first wear-resisting piece, the support both sides be equipped with the wear-resisting piece of second that corresponds with first wear-resisting piece position. The first wear-resistant block and the second wear-resistant block are made of materials with high hardness and have good wear resistance, the first sliding block can move left and right in the first sliding groove and can move to the second wear-resistant block from the first wear-resistant block, and the blocking shoulder can play a limiting role in the moving process of the first sliding block.

As the utility model discloses further improve, the second slider in be equipped with and promote the second slider and remove the oblique guide pillar of removal, the fixed plate that is equipped with of cope match-plate pattern, oblique guide pillar upper end fixed mounting in fixed plate department. In the die opening process, the upper die plate, the fixed plate and the inclined guide post move upwards together, and the inclined guide post drives the second slide block to move leftwards at the moment.

As the utility model discloses further improve, the die holder subassembly include ejector pin, lower mould backing plate, push pedal, lower mould fixing base. The lower die fixing seat is installed in the injection molding machine, and the push plate drives the ejector rod to move upwards to eject the injection molding piece after the die is opened.

The utility model has the advantages of reasonable structure, and can realize the molding and demoulding of injection molding pieces; the upper end face of a cavity forming injection molding piece, the lower end face of a core forming injection molding piece, a straight column hole of a forming needle forming injection molding piece, a side hole of an inclined sliding block forming injection molding piece, an inclined column hole of a core rod forming injection molding piece, an inclined groove structure in the inclined column hole of the closed angle forming injection molding piece of the core rod, a copper nut is firstly placed at a support column of the core rod, then the mold is closed for injection molding, the mold is opened after the injection molding is finished, and then the forming needle, the inclined sliding block and the core rod are demolded.

Drawings

FIG. 1 is a schematic view of an injection molded part;

FIG. 2 is an exploded view of the present invention;

fig. 3 is an assembly view of the present invention;

fig. 4 is a schematic cross-sectional view of a part of the present invention including the first slider and the second slider;

fig. 5 is a schematic cross-sectional view of the related parts of the present invention including the second slider.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

As shown in fig. 1-5: an injection mold of a shell comprises an upper mold base 1, an upper mold plate 2, a lower mold plate 19 and a lower mold base component from top to bottom in sequence, wherein a cavity 5 and a plurality of forming needles 4 are arranged in the upper mold plate 2, a mold core 18 is arranged in the lower mold plate 19, the mold core 18 and the cavity 5 jointly form a mold cavity capable of forming an injection molding part 100, the upper mold plate 2 is provided with a first slide block 9 capable of moving left and right, the first slide block 9 is provided with an inclined first guide part 9b and a T-shaped first guide groove 9a parallel to the first guide part 9b, a slidable square block 10 is arranged in the first guide groove 9a, the square block 10 is provided with a square hole 10a and a first shaft hole 10b, a core pulling rod 11 capable of moving in the cavity 5 and penetrating through the upper mold plate 2 is arranged in the mold cavity 5, a square connecting part 11a is arranged at the upper end of the core pulling rod 11, a second shaft hole 11d is arranged in the second shaft hole 11d, the square hole 10a is sleeved outside the connecting part 11a, the core pulling rod 11 is perpendicular to the first guide groove 9a, the lower end of the core pulling rod 11 is provided with a pillar 11c and a sharp corner 11b, the lower template 19 is provided with a second sliding block 15 capable of moving left and right, the second sliding block 15 is provided with an inclined second guide part 15a and a T-shaped second guide groove 15b parallel to the second guide part 15a, the core 18 is provided with a pressing plate 17 and an inclined sliding block 16 capable of sliding in the core 18 and extending to the cavity 5, the inclined sliding block 16 is provided with a sliding part 16a, a bayonet 16b and a plurality of forming pillars 16c, the sliding part 16a and the bayonet 16b are movably connected with the second guide groove 15b, the sliding direction of the inclined sliding block 16 is perpendicular to the second guide groove 15b, and the pressing plate 17 abuts against the upper ends of the second guide part 15a and the inclined sliding block.

A support 8 is arranged on the right side of the upper end of the upper template 2, and an oil cylinder 6 capable of driving the first sliding block 9 to move left and right is installed on the support 8.

The upper die plate 2 is provided with a first sliding groove 2a, a first sliding block 9 is connected with the first sliding groove 2a in a sliding mode, the two sides of the first sliding groove 2a are provided with a second sliding groove 2b and a fixing groove 2c, the two sides of the first sliding block 9 are provided with retaining shoulders 9c, the retaining shoulders 9c are connected with the second sliding groove 2b in a sliding mode, the fixing groove 2c is provided with a first wear-resistant block 3, and the two sides of the support 8 are provided with second wear-resistant blocks 7 corresponding to the positions of the first wear-resistant blocks 3.

An inclined guide post 14 capable of pushing the second sliding block 15 to move left and right is arranged in the second sliding block 15, a fixing plate 13 is fixedly arranged on the upper die plate 2, and the upper end of the inclined guide post 14 is fixedly arranged at the fixing plate 13.

The lower die holder component comprises an ejector rod 21, a lower die backing plate 23, a push plate 22 and a lower die fixing seat 20.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. An injection mold of a shell comprises an upper mold base, an upper mold plate, a lower mold plate and a lower mold base assembly from top to bottom in sequence, wherein a mold cavity and a plurality of molding needles are arranged in the upper mold plate, a mold core is arranged in the lower mold plate, and the mold core and the mold cavity jointly form a mold cavity capable of molding an injection molding piece, and the injection mold is characterized in that the upper mold plate is provided with a first slide block capable of moving left and right, the first slide block is provided with an inclined first guide part and a T-shaped first guide groove parallel to the first guide part, a slidable square block is arranged in the first guide groove, the square block is provided with a square hole and a first shaft hole, a core pulling rod capable of moving in the mold cavity and penetrating through the upper mold plate is arranged in the mold cavity, a square connecting part is arranged at the upper end of the core pulling rod, a second shaft hole is arranged in the connecting part, and a pin shaft penetrating through the first, the square hole sleeve is arranged outside the connecting part, the core pulling rod is perpendicular to the first guide groove, a pillar and a sharp corner are arranged at the lower end of the core pulling rod, the lower template is provided with a second sliding block capable of moving left and right, the second sliding block is provided with an inclined second guide part and a T-shaped second guide groove parallel to the second guide part, the core is provided with a pressing plate and an inclined sliding block capable of sliding in the core and extending to the cavity, the inclined sliding block is provided with a sliding part, a bayonet and a plurality of forming columns, the sliding part, the bayonet and the second guide groove are movably connected, the sliding direction of the inclined sliding block is perpendicular to the second guide groove, and the pressing plate is attached to the upper ends of the second guide part and the inclined sliding block.

2. The injection mold for the casing of claim 1, wherein a support is arranged on the right side of the upper end of the upper template, and the support is provided with an oil cylinder capable of driving the first sliding block to move left and right.

3. The injection mold for a casing according to claim 2, wherein the upper mold plate has a first sliding groove, the first sliding block is slidably connected to the first sliding groove, the first sliding groove has a second sliding groove and a fixing groove on both sides thereof, the first sliding block has a shoulder on both sides thereof, the shoulder is slidably connected to the second sliding groove, the fixing groove has a first wear-resistant block, and the support has a second wear-resistant block on both sides thereof corresponding to the first wear-resistant block.

4. The injection mold for casing of claim 1, wherein the second slide block is provided with an inclined guide pillar for pushing the second slide block to move left and right, the upper mold plate is fixedly provided with a fixing plate, and the upper end of the inclined guide pillar is fixedly installed at the fixing plate.

5. The injection mold for the housing of claim 1, wherein the lower mold base assembly comprises a top bar, a lower mold backing plate, a push plate, and a lower mold base.